Could oatmeal have made me violently ill?

A few weeks ago, I woke up at 6 am with what seemed like an awful case of food poisoning. At first felt like really bad menstrual cramps. Within about 45 minutes I was making frequent trips to the bathroom until it got to the point I couldn't even leave the bathroom. I was sweating, shaking, weak and exhausted, and eventually vomiting. Sorry for the gory details, but my question is, could oatmeal have been responsible for this? My boyfriend and I ate the same dinner, yet he didn't get the least bit sick. The only thing I ate that was different was oatmeal and strawberries. Having been almost completely grain and gluten free for months, could the sudden onslaught of gluten have caused those types of symptoms to that extreme?

Oatmeal can also contain gluten due to cross manipulation of grains in factories. If you desensitized yourself from gluten, a little bit of it many months after can trigger these issues. But the berries can also be the problem (?) We had some elevated risks of food poisoning in DK a while back due to strawberries imported from Poland that were not proper for consumption.

it could have been oatmeal but the symptoms are typical of norovirus. If it was norovirus it might have been from the strawberries(especially if they were in an open container and you help yourself -other people dip into them to and hygiene differs!) but its as likely you picked it up from a shopping trolley or a door handle contaminated by someone who has norovirus and hasn't washed their hands. Norovirus requires such a small viral load that its easy to develop it.
you feel like death until about 12 hours after the last bout of d or v, then quickly return to normal.
my sympathies,

People who are highly sensitive to gluten and sensitive to oats might get those symptoms, but the timing is off. It would likely have happened come on more quickly in that case. And it might be with you for days.

Could be the strawberries or you could have caught something somewhere else. Public restroom, random stranger, or perhaps even if you had the same dinner as your boyfriend your food was from a different batch or someone different came in contact with it.